1321ChemistryMedium
If speed of gas molecules increases by twice on heating. What will be their kinetic energy?
Aincreases by four times
Bdecreases by two times
Cincreases by two times
Ddecrease by four times
Correct answer
A. increases by four times
Explanation
The kinetic energy of gas molecules is proportional to the square of their speed. If the speed of the gas molecules increases by a factor of two, the kinetic energy will increase by the square of two. Thus, the kinetic energy will increase by four times.